Finding change in enthalpy of a rxn

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Tim Foster 2A
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Joined: Fri Sep 29, 2017 7:07 am

Finding change in enthalpy of a rxn

Postby Tim Foster 2A » Tue Jan 16, 2018 3:02 pm

When calculating the change in enthalpy of a rxn by subtracting the standard enthalpy of formation of the reactants from the standard enthalpy of the products, how do you find the enthalpies of formation for individual products/reactants? Is there a way to calculate this or is there a chart somewhere I should be using?

Sarah_Stay_1D
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Joined: Sat Jul 22, 2017 3:00 am
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Re: Finding change in enthalpy of a rxn

Postby Sarah_Stay_1D » Tue Jan 16, 2018 3:05 pm

Tim Foster 2A wrote:When calculating the change in enthalpy of a rxn by subtracting the standard enthalpy of formation of the reactants from the standard enthalpy of the products, how do you find the enthalpies of formation for individual products/reactants? Is there a way to calculate this or is there a chart somewhere I should be using?

I believe you can find the standard enthalpies of formation in a table or they would be given to you.

Kailey Brodeur 1J
Posts: 34
Joined: Thu Jul 27, 2017 3:00 am

Re: Finding change in enthalpy of a rxn

Postby Kailey Brodeur 1J » Tue Jan 16, 2018 3:07 pm

Yes, these values will always be given to you.

Janet Nguyen 2H
Posts: 51
Joined: Fri Sep 29, 2017 7:05 am

Re: Finding change in enthalpy of a rxn

Postby Janet Nguyen 2H » Tue Jan 16, 2018 4:17 pm

For problems in the textbook I believe they are in a table in the appendix of the book


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